I stayed there with my boyfriend for 7 days. The hotel is not very romantic, nor fancy at all, but is great if you just want to relax and get a taste of a real Caribbean island! We arrived at 5:00 pm to the island. Be aware and prepared to your arrival that the airport is very basic and old fashioned. Just getting out of there was a nightmare. Then the "transfer" to our hotel was an old car. We were 4 adults on the car (plus the driver), with no air conditioner and a temperature of 30°C. By saying this, I'm not complaining at all, I'm just telling you what to expect when you arrive to San Andrés. This isn't Cancun, Aruba, not even Punta Cana. So be prepared.
We arrived to the hotel and had to wait something like 15 minutes to our check in (there were 2 couples getting checked in before us). The receptionist was fast (for the island standard) and nice. She took the time to explain all the schedules, the near sights, tours and overall system of the hotel. Another thing to keep in mind: do not loose your wristband, your pool towels, the key to your room or to the safe, etc. They will charge you the biggest amounts for loosing them! Also, keep in mind that if you want to use the safe, they'll charge you a fee per day of use.
Ok, so next thing, we were given a room on the first floor, just on the side of the bar... We thought, "great, just what we needed, lot of noise and partying in the night". Well, we couldn't have been more wrong. If we kept the window closed (and believe me, you'll want to close your window and enjoy the air conditioner), the noise was acceptable. The tourist at the bar were considered and quiet most of the time. The room is small, just a bed, a small closet, a desk with an old tv and the bathroom (wich is small also. Inside the propper bathroom you have the shower and WC, outside and in a corner of the room, is the washbasin with toiletries). The walls are thin, that's true, but we almost didn't hear noises from the other rooms. The only bad thing is the lack of space to storage our luggage properly (the small closet isn't enough). The air conditioning was great: modern, silent and cooling.
The hotel itself is small. Very small. It has one pool, just a few loungers, the small bar and the restaurant where all foods are served. If you aren't a picky traveler, this will be more than enough. Because there are few rooms, the pool and the common spaces were almost quiet... almost, except when tourist from other Decameron resorts used the facilities of "Los Delfines". Those tourist were mostly rude, loudy and drunk. So, thank god we chose to stay at "Los Delfines", it was worth the extra money!! Despite the fact that they have just a few loungers, we didn't have trouble finding space during the day (most people leave the hotel in the day for excursions).
Now the food. This was the best part of staying in this hotel. The food is amazing!! Breakfast is buffet, not a huge variety, but a good amount of fruits, breads, milk & yogurt, juices. They also have a small breakfast menu, so you can order eggs, pancakes, etc. For the lunch and dinner each day you get a different menu. After 3 days, the menu will repeat. We tried almost every plate on the menu (except for the salads... I still can't eat raw vegetables when I'm travelling to the Caribbean) and all the dishes were amazing. They have plenty of choices (I'm putting some pictures with my review too). The staff is great, they always smile and get you what you want. It's good to be polite with them, show some interest for their lives or for the island. They can be slow, but you are on an island in the middle of the ocean. The whole city moves with a different peace. One night we decided to go to Decameron Aquarium to eat. Big mistake! The food there has no comparison with "Los Delfines".
Overall, I'd give this hotel 5 stars. The only problem we had was: we chose "Los Delfines" because we didn't wanna have kids around our vacations. We were told that the hotel was for adults only, but the fact is that there was a family with 2 small kids and those kids managed to make more noise than all the other guest!! I woke up early 3 days just because of those children! Also, they constantly let in families of other Decameron hotels, so there were children on the pool, and at the restaurant.
The hotel doesn't have a beach of its own, but you can go to the public beach which is near the hotel (it's just 2 minute walking) or you can go to Rocky Cay, the private beach club of the chain. It's not near the hotel, you'll need a cab to get there. But you can ask help at the reception. Also, it's important to book the day before or that same morning the lunch for Rocky Cay (they have a simple buffet restaurant there). The beach is amazing and the water is quiet and warm. It's worth the taxi ride. The club closes at 5 pm, so be sure to get there early. Also, the loungers are all taken before noon.
By the way, I traveled on June and the weather was nice. We had just a couple minutes of rain. At the next moment we had sun again! The locals explained to us that the showers are more common during the night. The wind was strong, but that's normal for June. The temperature: hot, hot, hot and very humid every single day! Don't even think about throwing a pair of jeans in your luggage, it is so hot in San Andres that you'll not be able to use them.
If you have any doubt about the hotel or San Andres, just contact me, I'll be more than happy to give you tips.